First Commmit

2026-04-14 22:41:14 +08:00
commit 9f867b19da
1086 changed files with 147554 additions and 0 deletions
--- a/protocol/naive/quic/inbound_init.go
+++ b/protocol/naive/quic/inbound_init.go
@@ -0,0 +1,128 @@
+package quic
+
+import (
+	"context"
+	"io"
+	"net/http"
+	"time"
+
+	"github.com/sagernet/quic-go"
+	"github.com/sagernet/quic-go/congestion"
+	"github.com/sagernet/quic-go/http3"
+	"github.com/sagernet/sing-box/common/listener"
+	"github.com/sagernet/sing-box/common/tls"
+	"github.com/sagernet/sing-box/log"
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-box/protocol/naive"
+	"github.com/sagernet/sing-quic"
+	"github.com/sagernet/sing-quic/congestion_bbr1"
+	"github.com/sagernet/sing-quic/congestion_bbr2"
+	congestion_meta1 "github.com/sagernet/sing-quic/congestion_meta1"
+	congestion_meta2 "github.com/sagernet/sing-quic/congestion_meta2"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	"github.com/sagernet/sing/common/ntp"
+)
+
+func init() {
+	naive.ConfigureHTTP3ListenerFunc = func(ctx context.Context, logger logger.Logger, listener *listener.Listener, handler http.Handler, tlsConfig tls.ServerConfig, options option.NaiveInboundOptions) (io.Closer, error) {
+		err := qtls.ConfigureHTTP3(tlsConfig)
+		if err != nil {
+			return nil, err
+		}
+
+		udpConn, err := listener.ListenUDP()
+		if err != nil {
+			return nil, err
+		}
+
+		var congestionControl func(conn *quic.Conn) congestion.CongestionControl
+		timeFunc := ntp.TimeFuncFromContext(ctx)
+		if timeFunc == nil {
+			timeFunc = time.Now
+		}
+		switch options.QUICCongestionControl {
+		case "", "bbr":
+			congestionControl = func(conn *quic.Conn) congestion.CongestionControl {
+				return congestion_meta2.NewBbrSender(
+					congestion_meta2.DefaultClock{TimeFunc: timeFunc},
+					congestion.ByteCount(conn.Config().InitialPacketSize),
+					congestion.ByteCount(congestion_meta1.InitialCongestionWindow),
+				)
+			}
+		case "bbr_standard":
+			congestionControl = func(conn *quic.Conn) congestion.CongestionControl {
+				return congestion_bbr1.NewBbrSender(
+					congestion_bbr1.DefaultClock{TimeFunc: timeFunc},
+					congestion.ByteCount(conn.Config().InitialPacketSize),
+					congestion_bbr1.InitialCongestionWindowPackets,
+					congestion_bbr1.MaxCongestionWindowPackets,
+				)
+			}
+		case "bbr2":
+			congestionControl = func(conn *quic.Conn) congestion.CongestionControl {
+				return congestion_bbr2.NewBBR2Sender(
+					congestion_bbr2.DefaultClock{TimeFunc: timeFunc},
+					congestion.ByteCount(conn.Config().InitialPacketSize),
+					0,
+					false,
+				)
+			}
+		case "bbr2_variant":
+			congestionControl = func(conn *quic.Conn) congestion.CongestionControl {
+				return congestion_bbr2.NewBBR2Sender(
+					congestion_bbr2.DefaultClock{TimeFunc: timeFunc},
+					congestion.ByteCount(conn.Config().InitialPacketSize),
+					32*congestion.ByteCount(conn.Config().InitialPacketSize),
+					true,
+				)
+			}
+		case "cubic":
+			congestionControl = func(conn *quic.Conn) congestion.CongestionControl {
+				return congestion_meta1.NewCubicSender(
+					congestion_meta1.DefaultClock{TimeFunc: timeFunc},
+					congestion.ByteCount(conn.Config().InitialPacketSize),
+					false,
+				)
+			}
+		case "reno":
+			congestionControl = func(conn *quic.Conn) congestion.CongestionControl {
+				return congestion_meta1.NewCubicSender(
+					congestion_meta1.DefaultClock{TimeFunc: timeFunc},
+					congestion.ByteCount(conn.Config().InitialPacketSize),
+					true,
+				)
+			}
+		default:
+			return nil, E.New("unknown quic congestion control: ", options.QUICCongestionControl)
+		}
+
+		quicListener, err := qtls.ListenEarly(udpConn, tlsConfig, &quic.Config{
+			MaxIncomingStreams: 1 << 60,
+			Allow0RTT:          true,
+		})
+		if err != nil {
+			udpConn.Close()
+			return nil, err
+		}
+
+		h3Server := &http3.Server{
+			Handler: handler,
+			ConnContext: func(ctx context.Context, conn *quic.Conn) context.Context {
+				conn.SetCongestionControl(congestionControl(conn))
+				return log.ContextWithNewID(ctx)
+			},
+		}
+
+		go func() {
+			sErr := h3Server.ServeListener(quicListener)
+			udpConn.Close()
+			if sErr != nil && !E.IsClosedOrCanceled(sErr) {
+				logger.Error("http3 server closed: ", sErr)
+			}
+		}()
+
+		return quicListener, nil
+	}
+	naive.WrapError = qtls.WrapError
+}